Perhaps you should try some spelling variations:
"trinh kham duan snippets" » "trinh cham duan snippets", "trinh khai duan snippets", "trinh han duan snippets", "trinh khac duan snippets", "trinh khau luan snippets", "trinh pham luan snippets", "trinh kham duan slippers"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets", "dung dung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh kham duan snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh kham duan snippets") OR ("dung dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh kham duan snippets ) or ( dung dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh kham duan snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))*.